Egypt has condemned a terrorist attack on Sunday that killed a policeman and injured six others in Saudi Arabia's governorate of Qatif, which has a large Shia population.

The Egyptian foreign ministry issued a statement on Monday saying that Egypt denounces the attack "in the strongest terms", offering sincere condolences to the policeman's family, and wishing the injured a speedy recovery.

The statement asserted Egypt's solidarity with Saudi Arabia in tackling terrorism and extremism, which it said aims to undermine stability and security in the kingdom.

Egypt offers its support for all measures taken by Saudi Arabia to foil the plans of terrorist organizations and protect its citizens, the statement said.

"It is necessary for the international community to come together to defeat the phenomenon of terrorism and extremism," the statement read, asserting the importance of finding a comprehensive solution to the problem.

Sunday's attack occured in the town of Awamiya, with a police patrol hit by a "terrorist attack using an exploding projectile", the Saudi interior ministry said in a statement carried by state news agency SPA.

No group has yet claimed responsibility for the attack.

The incident comes two months after Saudi authorities launched a security campaign to hunt down militants in the area.